Timothy O'regan to Thomas O'reilly - 1881 Census household returns
- Timothy O'regan
- Charles O'reiley
- Michael O'reiley
- Patrick O'reiley
- John O'reilley
- Alfred H O'reilly
- Bernard O'reilly
- Bridget O'reilly
- Charles O'reilly
- David O'reilly
- Edward O'reilly
- Eleanor O'reilly
- Elizabeth O'reilly
- Ellen O'reilly
- Gareth O'reilly
- George Wm O'reilly
- Gerald O'reilly
- Hugh O'reilly
- James O'reilly
- James O'reilly
- James O'reilly
- James O'reilly
- John O'reilly
- John O'reilly
- John O'reilly
- John J O'reilly
- Julia O'reilly
- Mary O'reilly
- Mary O'reilly
- Mary O'reilly
- Mary A O'reilly
- Mary J O'reilly
- Michael O'reilly
- Michael O'reilly
- Michael O'reilly
- Owen O'reilly
- Patrick R O'reilly
- Stephen O'reilly
- Terence O'reilly
- Thomas O'reilly